Lubricator.



W. SMITH.

LUBRIGATOR.

APPLICATION rum) 11017.18, 1910.

Patented NOV. 28, 1911.

Tooll whom may concern:

sl'the.

lowing to be a full, clear,

' -,The semi-spherical valve has a dependmg Be it known that I],ILL1AM SMITH, havpost-oifice address 164 Howard street, ow, Scotlanfd, Evaluator, a subject of I ritish Kin residing at Oambuslang, iLanarkshire, land, have invented oer.- tain new and useful Improvements in Lubricators; and I do hereby declare the fol- Q Glas tion of the invention, such as will enable others skilled'in the art to which it apperi tains to make and use the same. p

The present invention relates to force feed lubricators of the spring pressed piston type,

and has for its purpose to provide a lubricator of that character having a novel meansv for filling the same with lubricant and for causing its ejection under a oonstant uniform pressure. a

With these and other objects in view the invention consists in the arranfgtements and combinations of parts hereina er claimed, andwhile the invention is not restricted to the exact details shown and described, still for the purpose'of disclosure reference ishad to the accompanying drawing wherein the figure discloses the lubricator in central vertical section and with parts in elevation. r Referring to the construction in detail A is the cylindrical containing vessel of the lubricator.

" B is the inlet bywhich oil is fed by way of the tubularpassage 0 formed in the hollow stem C of the upper piston D. Placed in the said inlet is a semi-spherical valveE.

fstem F, around which is coiled a'spring G. The opposite end of said stem F 'works jthrough a hole or opening H which acts as. 40 a guide in the movement of the valve E iwhen it is "pressed from its seat in charging ithe lubricator.

{ I is the lower piston-having a hollow stem lor rod J adapted to move within its respecilt-iv'e end of the eylinderand provides the lgdischarge passage or outlet for the oil or' WILLIAM SMITH, or cmnusnnne, seorrnrmfg and exact des'crip-.-

Lu'BnIeA'ron lubricant. Placed in said hollow stem is the valve K- which terminates with a conical nozzle through which a passage L of small bore is formed. The oil or lubricant flows outthrough said passage and is controlled 1 Sp y 9 Patent Patented Nov. 28, 1911 Application filed November 18, 1910. Serial No. 593,056.. i 1 i or regulated in its movement by a milled head K, in screwing the conical nozzle'toward a transverse pin M or farther therefrom. j

N is a lock nut for determining a set discharge.

O, 1?, together cant. X

What is claimed is:

'1. In a=lubricator the combination of a cylinder, a piston mounted to move in said cylinder, a; hollow pistonrod connected with the piston and ada ted to have movement through one-end o the cylinder, a nozzle adjustably mounted in the end of said pisare the spiral springs for'pressin'g the pistons and ejecting the lubri- ,ton rod, a milled head for adjusting the position of said nozzle, a lock nut'for holding said nozzle in adjusted position, a pin disposed transversely of and secured in said piston rod adjacent one end of the nozzle and coiiperable with said end to regulate the flow of lubricant through the nozzle; and

a spring surrounding said piston rod and exerting a constant pressure against the plston.

2. In a lubricator the combination of a cylinder, a pair'of pistons mounted to move within thecylinder, a hollow piston rodsecured to one of said pistons and extending through one end of the cylinder, said hollow. piston rod providing a channel for supplying the lubricant to the cylinder, a valve comprising a semi-sp mounted within said piston rod, a spring surrounding the valve stem and normally tending to keep the valve" head seated, a spring surrounding said piston rod and normally tending to exert pressure against the piston, a'hollow piston rod connected with the other piston and mounted to have moveherical head and a stem mentin the end of said cylinder, a. nozzle.

adjustably mounted in theend of said rod,

a milled head for adjustin the osition of.

said nozzle, a lock nut or he ding said nozzle in adjusted dposition, a pin disposed transversely of an spring surrounding said piston rod and ex- 10 erting a constant pressure against the piston.

In testimony whereof, I aflix my signature, in presence. of two witnesses.

WILLIAM SMITH. Witnesses:

' IIARMON' O. Acm, 1

' J. H. Pmnson. 

